:root{
  --bg:#0d1014;
  --panel:#141922;
  --panel-2:#1b212c;
  --line:#252d3a;
  --text:#e8ecf2;
  --muted:#a2adbd;
  --accent:#5b94ff;
  --accent-ink:#ffffff;
  --warn:#ff8f7a;
  --max:920px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Noto Sans",sans-serif;
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
a{color:var(--accent)}
a:hover{color:#8bb4ff}

header.site{border-bottom:1px solid var(--line);padding:18px 0}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em;font-size:1.1rem;color:var(--text);text-decoration:none}
.mark{width:26px;height:26px;border-radius:7px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-size:14px;font-weight:800}
nav.site a{color:var(--muted);text-decoration:none;margin-left:18px;font-size:.95rem}
nav.site a:hover{color:var(--text)}

.btn{
  display:inline-block;background:var(--accent);color:var(--accent-ink);
  font-weight:700;text-decoration:none;padding:14px 24px;border-radius:10px;
  font-size:1rem;line-height:1.2;
}
.btn{background:#3b7dff;border:1px solid #3b7dff}
.btn:hover{background:#5b94ff;border-color:#5b94ff;color:#fff}
.btn:focus-visible{outline:3px solid #9cc0ff;outline-offset:2px}
.btn-note{display:block;color:var(--muted);font-size:.86rem;margin-top:12px}

section{padding:56px 0;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:0}
h1{font-size:2.1rem;line-height:1.2;letter-spacing:-.02em;margin:0 0 14px}
h2{font-size:1.5rem;line-height:1.25;letter-spacing:-.015em;margin:0 0 8px}
h3{font-size:1.05rem;margin:0 0 6px}
.lede{font-size:1.15rem;color:var(--muted);margin:0 0 28px;max-width:44em}
.sub{color:var(--muted);margin:0 0 26px;max-width:46em}
p{margin:0 0 16px}

.hero{padding:64px 0 56px}
.kicker{
  display:inline-block;font-size:.78rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--accent);border:1px solid var(--line);background:var(--panel);
  padding:6px 12px;border-radius:999px;margin-bottom:20px;font-weight:700;
}

.grid{display:grid;gap:16px;margin-top:8px}
@media(min-width:720px){ .grid.two{grid-template-columns:1fr 1fr} }
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px}
.card p{margin:0;color:var(--muted);font-size:.97rem}
.card .count{font-size:.8rem;color:var(--warn);font-weight:700;letter-spacing:.02em;display:block;margin-bottom:6px}

.fix{border-left:3px solid var(--accent)}
.fix .was{display:block;font-size:.85rem;color:var(--muted);margin-bottom:8px}
.fix .was b{color:var(--warn);font-weight:700}

ol.steps{counter-reset:s;list-style:none;margin:8px 0 0;padding:0;display:grid;gap:14px}
ol.steps li{
  counter-increment:s;background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:18px 20px 18px 62px;position:relative;
}
ol.steps li::before{
  content:counter(s);position:absolute;left:18px;top:18px;width:28px;height:28px;
  border-radius:8px;background:var(--panel-2);border:1px solid var(--line);
  color:var(--accent);font-weight:800;font-size:.9rem;display:grid;place-items:center;
}
ol.steps p{margin:4px 0 0;color:var(--muted);font-size:.95rem}

ul.feat{list-style:none;padding:0;margin:8px 0 0;display:grid;gap:10px}
ul.feat li{padding-left:26px;position:relative;color:var(--muted)}
ul.feat li::before{content:"";position:absolute;left:4px;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--accent)}
ul.feat b{color:var(--text)}

details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:0;margin-bottom:10px}
summary{cursor:pointer;padding:16px 20px;font-weight:650;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--accent);font-weight:800}
details[open] summary::after{content:"\2212"}
details .body{padding:0 20px 16px;color:var(--muted);font-size:.97rem}
details .body p:last-child{margin-bottom:0}

.stats{display:grid;gap:14px;margin:0 0 26px}
@media(min-width:640px){ .stats{grid-template-columns:1fr 1fr} }
.stat{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.stat b{display:block;font-size:1.6rem;line-height:1.1;letter-spacing:-.02em}
.stat span{color:var(--muted);font-size:.9rem}

.cta-band{text-align:center}
.cta-band h2{margin-bottom:10px}

footer.site{padding:36px 0 48px;color:var(--muted);font-size:.92rem}
footer.site .row{display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:space-between}
footer.site nav a{margin-right:18px}
.fine{margin-top:18px;font-size:.85rem;color:#7f8a99;max-width:50em}

/* ---- article / guide additions ---- */
.crumbs{font-size:.88rem;color:var(--muted);margin:0 0 18px}
.crumbs a{text-decoration:none}
article.doc{max-width:46em}
article.doc h2{margin:38px 0 10px}
article.doc h3{margin:26px 0 6px;font-size:1.08rem}
article.doc ul,article.doc ol{color:var(--muted);padding-left:1.3em}
article.doc li{margin-bottom:8px}
article.doc b,article.doc strong{color:var(--text)}
article.doc table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.95rem}
article.doc th,article.doc td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
article.doc th{background:var(--panel-2);color:var(--text);font-size:.88rem;letter-spacing:.01em}
article.doc td{color:var(--muted)}
code{background:var(--panel-2);border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:.9em}
.note{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;padding:16px 20px;margin:22px 0}
.note p{margin:0;color:var(--muted);font-size:.96rem}
.note p + p{margin-top:10px}
figure.shot{margin:24px 0;padding:0}
figure.shot img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:12px;background:var(--panel)}
figure.shot figcaption{color:#7f8a99;font-size:.85rem;margin-top:8px}
.guide-list{display:grid;gap:14px;margin-top:8px}
@media(min-width:720px){ .guide-list{grid-template-columns:1fr 1fr} }
.guide-list a.card{display:block;text-decoration:none;color:var(--text)}
.guide-list a.card:hover{border-color:var(--accent);color:var(--text)}
.guide-list a.card h3{color:var(--text)}

@media(min-width:760px){ h1{font-size:2.7rem} h2{font-size:1.8rem} }